Port-au-Prince was a canyon of crushed concrete and horrified screams as Jean Samson Edouard ran panicked and barefoot through the capital’s Carrefour-Feuilles district. It was shortly before 5 p.m. on Tuesday, Jan. 12, 2010 — a decade ago this Sunday. A magnitude-7.0 earthquake had just destroyed much of Haiti — and killed anywhere between 100,000 and 200,000 people, according to most estimates (although the Haitian government had put the toll as high as 300,000).